Screwworm Threat Prompts Heightened Biosecurity as Experts Urge Vigilance

Dr. Rosslyn Biggs with the Oklahoma State University Center for Rural Veterinary Medicine shares insight into biosecurity, preparedness, and animal health concerns facing livestock producers as New World screwworm outbreaks continue in Mexico.

STILLWATER, Okla. (RFD-TV)Recent detections of New World screwworm in Mexico have prompted heightened biosecurity measures across the livestock industry, with producers urged to remain alert and prepared forpotential outbreaks.

Dr. Rosslyn Biggs with the Oklahoma State University Center for Rural Veterinary Medicine joined us on Wednesday’s Market Day Report to discuss the situation and outline what producers should know moving forward.

In her interview with RFD-TV News, Dr. Biggs emphasized that early detection is critical for New World screwworm. She explained how producers can take a proactive approach and highlighted key signs in livestock to watch for that could indicate the deadly parasitic infection spread by flies.

Biggs also emphasized the importance of staying informed and vigilant as the situation develops, noting that OSU is working to ensure producers have access to timely information and resources, and outlined the first steps producers should take if they believe they are encountering an outbreak New World screwworm.

Additionally, Biggs stressed that establishing a relationship with a veterinarian before an emergency occurs is essential, noting that preparation and communication can make a significant difference during a disease response.

Finally, Dr. Biggs also shared her outlook for the year ahead on the rural veterinarian shortage and its potential implications for animal health and protection in rural communities.

Related Stories
RealAg Radio’s Shaun Haney discusses Canada’s new soil health strategy, its implications for producers, and its potential to support sustainable agriculture in Canada compared to USDA funding for conservation.
National Association of Wheat Growers President Jamie Kress discusses how rising fertilizer prices pressure wheat producers and the Administration’s consideration of lowering duties on Moroccan phosphate.
Curing title defects in an agricultural context requires a blend of traditional real estate law and a deep understanding of rural land use history.
Senior exhibitor reflects on years of work in the ring and the bond that led to his first sale
After years of showing livestock, Gosda reflects on the bond and responsibility of taking care of her cattle
Oklahoma Cattlemen’s Michael Kelsey joined us to discuss wildfire impacts across the Southern Plains, the importance of community support, and the path forward for affected producers.

Marion is a digital content manager for RFD News and FarmHER + RanchHER. She started working for Rural Media Group in May 2022, bringing a decade of digital experience in broadcast media and some cooking experience to the team.

LATEST STORIES BY THIS AUTHOR:

Geopolitical tensions in the Strait of Hormuz disrupt fertilizer shipments, raising costs and creating uncertainty for U.S. farmers ahead of planting season.
APHIS Veterinary Medical Officer Dr. Chelsey Shiveley discusses USDA’s biosecurity resources available to poultry producers ahead of spring migration, increasing the risk of Highly Pathogenic Avian Influenza (HPAI) threatens commercial flocks.
Even some Democrats have expressed support for dismantling cartel operations. South Texas Congressman Vicente Gonzalez said he agrees with Trump on the issue.
This year at CattleCon 2026, RFD Network’s Kirbe Schnoor caught up with Donna Emick from Pneu-Dart to get her perspective on why education, safety, and accountability matter in the field.
Nebraska’s largest wildfire on-record has burned 650,000 acres, with three other major fires also burning across the state, destroying pastureland and threatening cattle.
NCBA President Colin Woodall states that misinformation like this is damaging to cattle producers, the beef supply chain, and consumer confidence
Agriculture Shows
Hosted by Scott “The Cow Guy” Shellady and RFD News Markets Specialist Tony St. James, Commodity Talk delivers expert insight into the day’s ag commodity markets just before the CME opens. Only on RFD-TV and Rural Radio SiriusXM Channel 147.
A look at the news, weather and commodities headlines that drove agriculture markets in the past week.
Everything profits from prairie. Soil, air, water — and all kinds of life! Learn how you can improve your land with prairie restoration, cover crops and prairie strips, while growing your bottom line.
Special 3-part series tells the story of the Claas family’s legacy, which changed agriculture forever.